SKU: SP2478
UPC: 076683024787
MPN: 2478
The Speer Hot-Cor Rifle Bullets .45 cal .458" 350 gr SPFN is a heavy-duty reloading component engineered for hunters and precision rifle builders who demand consistent, hard-hitting performance downrange. This 50-round box of semiwadcutter flatpoint projectiles represents over a century of Speer's metallurgical expertise—a manufacturer trusted across law enforcement and military communities for repeatable accuracy and terminal performance. Whether you're handloading for vintage rifles, big-game hunting, or serious long-range practice, these .458-inch diameter bullets deliver the mass and construction required for deep penetration and controlled expansion in demanding applications.
Built on Speer's proven Hot-Cor process, each 350-grain bullet features a pure lead core fused to a gilding-metal jacket at the moment of casting—eliminating delamination and ensuring uniform weight and velocity performance across entire batches. The semiwadcutter flatpoint profile minimizes air resistance while the blunt nose geometry promotes consistent feeding in magazine-fed systems and provides a larger crushing surface for soft-tissue engagement. This bullet construction is purpose-built for cartridges like the .45-70 Government, .458 Winchester Magnum, and other large-bore applications where heavy, controlled projectiles are non-negotiable for ethical and effective hunting or ballistic testing.
Reload enthusiasts and professional gunsmiths favor these bullets for their dimensional consistency, which simplifies case sorting and powder charge development. The 2.59 lb box weight reflects the substantial mass per round—a characteristic that demands respect during handling and storage. Compatible with standard .458-inch bore reloading dies and suitable for both black-powder and modern magnum rifle platforms, these projectiles are ideal for hunters working medium to dangerous game, as well as shooters seeking authentic big-bore ballistic research and competition use.
WARNING ⚠️ You must be 18 or older to purchase shotgun or rifle ammunition and 21 or older to purchase handgun ammunition and firearms. Please reference our requirements for ammunition orders to "restricted" states HERE. Always make sure you use the correct ammunition for your firearms. Ammo cannot be shipped to a PO Box. Please reference state & local laws before making a firearm or ammunition purchase.